推 zenwhale: 當vb速度等於va時,兩者有最小距離,並且在該時間時a比b 12/01 01:12
→ zenwhale: 多走54m 12/01 01:12
→ zenwhale: 用上面兩個條件聯立即可 12/01 01:12
→ zenwhale: va=vb+ at 12/01 01:13
→ zenwhale: xa=va*t 12/01 01:14
→ zenwhale: xb=vb*t+0.5a*t^2 12/01 01:15
→ zenwhale: xb-xa=54 12/01 01:16
→ zenwhale: 阿 是xa-xb=54 才對 12/01 01:17
※ Deleted by: feva (36.237.25.36) 12/05/2016 00:37:17